Themes per Package
## ggplot2::theme_bw()

## ggplot2::theme_classic()

## ggplot2::theme_dark()

## ggplot2::theme_gray()

## ggplot2::theme_grey()

## ggplot2::theme_light()

## ggplot2::theme_linedraw()

## ggplot2::theme_minimal()

## ggplot2::theme_void()

## ggthemes::theme_base()

## ggthemes::theme_calc()

## ggthemes::theme_clean()

## ggthemes::theme_economist()

## ggthemes::theme_economist_white()

## ggthemes::theme_excel()

## ggthemes::theme_excel_new()

## ggthemes::theme_few()

## ggthemes::theme_fivethirtyeight()

## ggthemes::theme_foundation()

## ggthemes::theme_gdocs()

## ggthemes::theme_hc()

## ggthemes::theme_igray()

## ggthemes::theme_map()

## ggthemes::theme_pander()

## ggthemes::theme_par()

## ggthemes::theme_solarized()

## ggthemes::theme_solarized_2()

## ggthemes::theme_solid()

## ggthemes::theme_stata()

## ggthemes::theme_tufte()

## ggthemes::theme_wsj()

## cowplot::theme_cowplot()

## cowplot::theme_half_open()

## cowplot::theme_map()

## cowplot::theme_minimal_grid()

## cowplot::theme_minimal_hgrid()

## cowplot::theme_minimal_vgrid()

## cowplot::theme_nothing()

## hrbrthemes::theme_ft_rc()

## hrbrthemes::theme_ipsum()

## hrbrthemes::theme_ipsum_es()

## hrbrthemes::theme_ipsum_ps()

## hrbrthemes::theme_ipsum_pub()

## hrbrthemes::theme_ipsum_rc()

## hrbrthemes::theme_ipsum_tw()

## hrbrthemes::theme_modern_rc()

## hrbrthemes::theme_tinyhand()
